Swits conde



' UNITED STATES PATENT OFFICE.

SWITS oonnn, F oswneo, NEW YORK.

BURR FOR KNlTTlNG-MACHINES.

SPECIFICATION forming part of Letters Patent No. 240,008, dated April12, 1881.

- Application filed August 13, 1879.

To all whom it may concern .Be it known that I, Swrrs Count, of Oswego,in the county of Oswego, in the State of New York, have inyented new anduseful Improvements in Burrs for Knitting-Machines,

of which the following, taken in connection with the accompanyin gdrawings,is afu1l,clear, and exact description.

This invention relates tothe feed mechanism of a knitting-machinedesigned to knit fabric with a vertical or longitudinal stripe, and hasmore particularly reference to that class of the aforesaid mechanism inwhich two loop-wheels or so-called burrs, fed with separate threads,operate side by side, one of said burrs being of the ordinaryconstruction and filling every needle with thread, while the othervhas acertain number of the interstices between its thread-liftin g teeth orwings filledwith block which presses against and closes the beards ofcertain needles, and thus causes its thread to skip over the saidneedles, carrying the single thread applied thereto by the otheraforesaid burr.

The invention consists in truncating the hook ends or nibs of the wingsor teeth adjacent to the filled interstices in the periphery of theburr, which press against and close the beards of the needles, by theremoval of which hooks or nibs the thread or yarn is relieved of allupward strain and allowed to pass straight across the front of theneedle or needles, and thus leave a smooth surface at the back of thefabric.

The invention is fully illustrated in the accompanying drawings, whereinFigure 1 is a side view of that part of a knittingmachine to which myimprovement is applied. Fig. 2 is a detached view of the knitting-needleand that part of the burr which causes the drop-' having at the upperend a hook the free/end of which projects downward on the outer side ofthe needle.

B isthe loop-wheel or so-called 4 burr,- which forces the yarn into thehooks of the needles n n, and thus makes the first step toward theformation of a mesh or loop. This burr ordicause the wings a a to enterbetween the needles n n on thehorizontally-revolving drum 0. Therotation of said drum causes, by the engagement of the needles with thewings of the burr, the latter to revolve. passed between the needles andthe burr, is

thus pressed against the needles, and by the nibs b of the wings acarried up and into the hooks of the needles. A revolving disk, A,bearing upon the knitted fabric near its junction with the needles,presses the previouslyformed loops down below the hooks of the needlesbefore the entrance of the yarn, as before set forth. A horizontal diskat the opposite side of the burr, pressing against the free ends of thehooks, closes the same and allows the meshes at the bottom of theneedles to slip up over the outside of the hooks, and, by the usuallanding-burr and knocking-over burr, be carried over the tops of theneedles, and thus complete the new loops or meshes with the yarn in the,needles.

In my invention two threads or strands of yarn are fed separately to themachine by two burrs arranged in close proximity toeach other, and insuch position relative to the auxiliary knitting mechanism that boththreads or yarns may enter the needles before the meshes previouslyformed on the fabric are drawn over them. One of said burrs being of theordinary construction, as before described, fills every The yarn, beingneedle and produces continuous stitches, the

other extra burr having the hook or nib b of one or more of the wingstruncated and the space at the side of said wing partly filled by acam-shaped block, 0. block 0 against the free end of the hook of theneedle closes the same and prevents the yarn fed to said burr fromentering it, and the truncation of the nib b allows the thread to passfreely and straight over the outside of the needle. The aforesaidordinary burr fills with its single thread the needles which wereskipped and left empty by the other mutilated burr, and then the meshwhich is at the bottom of the needle being drawn up over the saidthread, as before described, forms a new mesh with the same, leaving thethread of the mutilated burr free on the exterior of the fabric. Thelatter loose thread is combined with the other eontinuously-enteringthread by the hooked wings of the mutilated burr carrying the loosethread into the books of the needles containing the thread fed by theordinaryburr before the previously-formed meshes are drawn over them.

It will be observed that, by using a different color of yarn with eachof the said burrs and arrangingthelmrrs so that thetruncated wings Thepressure of thewill operate on the same needles at every revolution ofthe needle-carrying rim or drum 0, vertical stripes are produced in thefabric, the meshes of the single thread forming plain-colored stripesand those of the double thread producing mottled stripes.

Having thus described my invention,what I claim as new, and desire tosecure by Letters Patent, is-. i

The loop-wheel or burr B, provided with a series of hooked wings, a b, aseries of wings without such hooks, and the filling-blocks 0, arrangedbetween the said two series of wings, substantially as described, andfor the purpose set forth.

In testimony whereofl have hereunto signed my name and affixed my seal,in the presence of two attesting witnesses, at Oswego, in the county ofOswego and State of New York, this 25th day of July, 1879.

switrs GONDE. [1,. s.|

